Donald Trump’s new campaign chairman and chief strategist, Paul Manafort, promised GOP leaders in Washington that the party’s presumptive presidential nominee can change his style and win over more Latino voters.

The campaign chief’s meeting Thursday with congressional aides and other Republican operatives came on the heels of last week’s meetings in Washington by the candidate himself with House Speaker Paul Ryan and other congressional leaders.

Manafort, who the campaign announced Thursday has been promoted from convention manager to campaign chairman and chief strategist, told the meeting attendees “that Ronald Reagan used to be criticized just like Trump is now for his polarizing reputation within the Republican Party,” according to Politico.

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Trump’s “behavior can be changed,” he reassured those on hand.

“His negatives are going to be changing over the course of the next couple of weeks, as Republicans come home. They’re changing as we speak,” Manafort explained to Politico after the meeting.

A Fox News poll released on Wednesday found Democrat Hillary Clinton is viewed more unfavorably by voters than Trump, 61 to 56 percent. Further, the former secretary of state’s unfavorably number is up from 58 percent in March, while Trump’s is down from 65 percent.

Manafort said the campaign will be seeking to court Latinos. An NBC News/Survey Monkey poll released earlier this week found Trump garnering 28 percent of the Latino vote, which is one point better than what former Massachusetts Gov. Mitt Romney won in 2012.

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A Gallup poll taken in March found only 12 percent of Hispanics had a favorable view of the businessman and 77 percent unfavorable, which would indicate Trump is perhaps making some gains among the demographic.

The candidate, in fact, plans to make his first campaign stop in New Mexico, the state with the highest percentage of Latinos, on Tuesday. The Land of Enchantment’s primary is on June. 7.

After Thursday’s Capitol Hill meeting, Manafort told ABC News, “There’s a growing number of people supporting us. We feel very comfortable that even more will be supporting us next trip.”

“They all recognize now that we definitely can win, and they want to know what kind of issues we will be stressing, which we’ll be doing in the next month or two,” he added.

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A Fox News poll released on Wednesday had Trump over Clinton, 45 to 42 percent, which is a 10-point swing from last month, when he was losing in a hypothetical match-up by 7 points.

As for Manafort’s new leadership role, Trump spokeswoman Hope Hicks made clear that he was not taking over campaign manager Corey Lewandowski’s job. The latter will “continue overseeing day-to-day operations and will work with Manafort on political strategy and communications, among other things, through the general election,” she said.